As of 06:26 PDT

Weather in Heisson, WA

48°Current weather

Heisson, Wednesday, 7 October, 06:26

Clear. Feels like 48°. High 77°, low 48°.

Pressure30.06 inHg
Wind1.1 mph NE
Humidity96%
Visibility6.2 mi
Dew point47°

Monthly outlook for Heisson, WA: average high 66.4°, average low 43.5°. That is 2.7° above the climate normal for October. Precipitation is expected on 4 days (about 0.8 inches), against a normal of 6 days and 3.2 inches. The warmest day looks like 8 October (78.9°), the coolest 15 October (39.7°).

66.4°/43.5°
Average high / low
+2.7°
Above normal
4 / 6
Wet days / normal
0.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
7 October – 16 October64.4°62.5°+1.1°
17 October – 26 October69.7°58.9°+6°
27 October – 5 Novemberat normal54.5°—

October records over 66 years

87.6°1 October 1987All-time high
28°29 October 1971All-time low

Climate normals and records are computed from the nearest reference point — Hockinson (7 mi).

Thu, 0879° / 49°0Mostly clear
79 °Mostly clear

Heisson, Thursday, 8 October

Mostly clear. High 79°, low 49°.

Pressure30.00 inHg
Wind2.8 mph SW
Humidity54%
Visibility6.2 mi
Dew point53°
Fri, 0960° / 48°0.21Rain
60 °Rain

Heisson, Friday, 9 October

Rain. High 60°, low 48°.

Pressure29.85 inHg
Wind8.4 mph W
Humidity99%
Visibility1.9 mi
Dew point55°
Sat, 1058° / 43°0.15Light rain
58 °Light rain

Heisson, Saturday, 10 October

Light rain. High 58°, low 43°.

Pressure29.85 inHg
Wind2.9 mph S
Humidity81%
Visibility6.2 mi
Dew point46°
Sun, 1163° / 42°0Clear
63 °Clear

Heisson, Sunday, 11 October

Clear. High 63°, low 42°.

Pressure30.00 inHg
Wind4.6 mph NE
Humidity41%
Visibility—
Dew point32°
Mon, 1263° / 41°0Clear
63 °Clear

Heisson, Monday, 12 October

Clear. High 63°, low 41°.

Pressure30.09 inHg
Wind5.7 mph NE
Humidity38%
Visibility—
Dew point31°
Tue, 1360° / 40°0.31Rain
60 °Rain

Heisson, Tuesday, 13 October

Rain. High 60°, low 40°.

Pressure29.97 inHg
Wind6.1 mph SW
Humidity31%
Visibility—
Dew point23°
Wed, 1455° / 44°0.09Light rain
55 °Light rain

Heisson, Wednesday, 14 October

Light rain. High 55°, low 44°.

Pressure30.06 inHg
Wind9.2 mph NW
Humidity81%
Visibility—
Dew point44°
Thu, 1565° / 40°0Clear
65 °Clear

Heisson, Thursday, 15 October

Clear. High 65°, low 40°.

Pressure30.30 inHg
Wind7.1 mph E
Humidity56%
Visibility—
Dew point38°
Fri, 1664° / 46°0Clear
64 °Clear

Heisson, Friday, 16 October

Clear. High 64°, low 46°.

Pressure30.18 inHg
Wind15.1 mph E
Humidity37%
Visibility—
Dew point32°
Sat, 1770° / 42°0Clear
70 °Clear

Heisson, Saturday, 17 October

Clear. High 70°, low 42°.

Pressure29.94 inHg
Wind5.6 mph NE
Humidity31%
Visibility—
Dew point28°
Sun, 1871° / 43°0Clear
71 °Clear

Heisson, Sunday, 18 October

Clear. High 71°, low 43°.

Pressure29.91 inHg
Wind5.1 mph NE
Humidity28%
Visibility—
Dew point28°
Mon, 1967° / 43°0Clear
67 °Clear

Heisson, Monday, 19 October

Clear. High 67°, low 43°.

Pressure30.03 inHg
Wind7 mph NW
Humidity36%
Visibility—
Dew point30°
Tue, 2072° / 40°0Clear
72 °Clear

Heisson, Tuesday, 20 October

Clear. High 72°, low 40°.

Pressure30.18 inHg
Wind4.9 mph NE
Humidity40%
Visibility—
Dew point31°
Wed, 2171° / 43°0Partly cloudy
71 °Partly cloudy

Heisson, Wednesday, 21 October

Partly cloudy. High 71°, low 43°.

Pressure30.12 inHg
Wind3.7 mph W
Humidity28%
Visibility—
Dew point26°
Thu, 2268° / 46°0Overcast
68 °Overcast

Heisson, Thursday, 22 October

Overcast. High 68°, low 46°.

Pressure30.00 inHg
Wind3.5 mph NE
Humidity35%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2358° / 45°0.2Climate normal
58 °Climate normal

Heisson, Friday, 23 October

Climate normal for this date — 60-year average.

Average high58°
Average low45°
Average precipitation0.2 in
Chance of precipitation48%
Record high72° (2007)
Record low38° (1984)
Sat, 2458° / 44°0.25Climate normal
58 °Climate normal

Heisson, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high58°
Average low44°
Average precipitation0.25 in
Chance of precipitation52%
Record high71° (2017)
Record low35° (2024)
Sun, 2557° / 44°0.3Climate normal
57 °Climate normal

Heisson, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high57°
Average low44°
Average precipitation0.3 in
Chance of precipitation57%
Record high73° (1965)
Record low32° (2020)
Mon, 2656° / 43°0.35Climate normal
56 °Climate normal

Heisson, Monday, 26 October

Climate normal for this date — 60-year average.

Average high56°
Average low43°
Average precipitation0.35 in
Chance of precipitation58%
Record high71° (2003)
Record low30° (2020)
Tue, 2756° / 43°0.31Climate normal
56 °Climate normal

Heisson, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high56°
Average low43°
Average precipitation0.31 in
Chance of precipitation52%
Record high72° (1987)
Record low30° (1971)
Wed, 2855° / 42°0.33Climate normal
55 °Climate normal

Heisson, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high55°
Average low42°
Average precipitation0.33 in
Chance of precipitation60%
Record high71° (1987)
Record low28° (1971)
Thu, 2955° / 42°0.27Climate normal
55 °Climate normal

Heisson, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high55°
Average low42°
Average precipitation0.27 in
Chance of precipitation55%
Record high69° (1962)
Record low28° (1971)
Fri, 3054° / 42°0.3Climate normal
54 °Climate normal

Heisson, Friday, 30 October

Climate normal for this date — 60-year average.

Average high54°
Average low42°
Average precipitation0.3 in
Chance of precipitation53%
Record high66° (1965)
Record low28° (1991)
Sat, 3154° / 42°0.39Climate normal
54 °Climate normal

Heisson, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high54°
Average low42°
Average precipitation0.39 in
Chance of precipitation58%
Record high67° (1962)
Record low29° (2019)
Sun, 0154° / 42°0.34Climate normal
54 °Climate normal

Heisson, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high54°
Average low42°
Average precipitation0.34 in
Chance of precipitation55%
Record high66° (1966)
Record low29° (2003)
Mon, 0255° / 42°0.26Climate normal
55 °Climate normal

Heisson, Monday, 2 November

Climate normal for this date — 60-year average.

Average high55°
Average low42°
Average precipitation0.26 in
Chance of precipitation47%
Record high66° (1981)
Record low30° (1973)
Tue, 0355° / 43°0.28Climate normal
55 °Climate normal

Heisson, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high55°
Average low43°
Average precipitation0.28 in
Chance of precipitation57%
Record high65° (1986)
Record low29° (2003)
Wed, 0454° / 43°0.44Climate normal
54 °Climate normal

Heisson, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high54°
Average low43°
Average precipitation0.44 in
Chance of precipitation63%
Record high68° (1980)
Record low31° (1968)
Thu, 0553° / 42°0.35Climate normal
53 °Climate normal

Heisson, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high53°
Average low42°
Average precipitation0.35 in
Chance of precipitation73%
Record high65° (1987)
Record low26° (1971)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Heisson, WA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Heisson, WA since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.